The Salesperson Own Contact module for Odoo restricts salespersons to view and manage only their assigned customers and contacts, ensuring data privacy and controlled access. With this module, sales managers can configure access rights, allowing salespersons to see only their own documents or all documents based on assigned permissions. This enhances security, streamlines sales management, and prevents unauthorized access to customer data, making it ideal for businesses that require role-based access control in their CRM and sales operations.